18667168552052 has 12 divisors (see below), whose sum is σ = 34589165258340. Its totient is φ = 8784549906816.

The previous prime is 18667168552037. The next prime is 18667168552061. The reversal of 18667168552052 is 25025586176681.

It can be written as a sum of positive squares in 2 ways, for example, as 17323525919716 + 1343642632336 = 4162154^2 + 1159156^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137258592227 + ... + 137258592362.

It is an arithmetic number, because the mean of its divisors is an integer number (2882430438195).

Almost surely, 2^{18667168552052} is an apocalyptic number.

It is an amenable number.

18667168552052 is a deficient number, since it is larger than the sum of its proper divisors (15921996706288).

18667168552052 is a wasteful number, since it uses less digits than its factorization.

18667168552052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274517184610 (or 274517184608 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 62.

The spelling of 18667168552052 in words is "eighteen trillion, six hundred sixty-seven billion, one hundred sixty-eight million, five hundred fifty-two thousand, fifty-two".